" 7."cos(b log x/a)

int(cos(a+b log x))/(x)dx

If y=a cos ( log x )+ bsin (log x) where a , b are parameters , then x^(2) y''+ xy' =

If y=a cos ( log x )+ bsin (log x) where a ,b are parameters ,then x^(2) y''+ xy '=

Integrate (cos(log x))/(x)

y = A cos (log x) + B sin (log x)

The differential equation obtained by eliminating arbitrary constants A and B from y=A cos(log x)+B sin(log x) is

if y=a sin (log x) + b cos (log x ) , then the differential equation without the parameter a and b is

if y=a sin (log x) + b cos (log x ) , then the differential equation without the parameter a and b is

int [ sin(log x) + cos(log x)] dx=........... A) x cos(log x) + c B) sin(log x) + c C) cos(log x) + c D) x sin(log x) + c

int cos(log x)dx is equal to (A)(x)/(2)(cos(log x)-sin(log x))+c(B)x(cos(log x)+sin(log x))+c(C)(x)/(2)(cos(log x)+sin(log x)+c(D)x(cos(log x)-sin(log x))+c